公开(公告)号：US20240069129A1

公开(公告)日：2024-02-29

申请号：US18237486

申请日：2023-08-24

Applicant: JEOL Ltd.

Inventor： Yuki Endo

IPC: G01R33/30

CPC classification number: G01R33/307

Abstract: A load unit jets a load gas from a cone-shaped slit to a first position located in a pathway. As a result, a first gas stream for loading a sample tube is generated. An eject unit jets an eject gas from a cone-shaped slit to a second position in the pathway. As a result, a second gas stream for ejecting a sample tube is generated.

公开(公告)号：US11156681B2

公开(公告)日：2021-10-26

申请号：US16720824

申请日：2019-12-19

Applicant: JEOL Ltd.

Inventor： Yuki Endo ,  Masahide Nishiyama

IPC: G01V3/00 ,  G01R33/30

Abstract: A rotational force is applied to a sample tube by blowing of a drive gas to the sample tube. A spinning frequency of the sample tube is sequentially detected as a detection value. Acceleration control to gradually increase a pressure of the drive gas is executed until the detection value reaches a target value. In a process of the acceleration control, abnormality is determined based on a change with respect to time (difference: ΔF) of the detection value. The determination is executed in a section of interest including a resonance frequency.

公开(公告)号：US20200072917A1

公开(公告)日：2020-03-05

申请号：US16548121

申请日：2019-08-22

Applicant: Osaka University ,  JEOL Ltd.

Inventor： Toshimichi Fujiwara ,  Yoh Matsuki ,  Yuki Endo ,  Shinji Nakamura ,  Hiroki Takahashi

IPC: G01R33/30 ,  G01R33/28 ,  G01R33/36

Abstract: A container has a sample installation unit and an NMR circuit therein, and is connected to a bearing gas supply path and a drive gas supply path for supplying gas to the inside of that container. This container is also connected to an exhaust path that exhausts the gas from the inside of the container. The exhaust path has a pressure control valve as an adjustment mechanism for adjusting the pressure in the container.

公开(公告)号：US10241064B2

公开(公告)日：2019-03-26

申请号：US15384356

申请日：2016-12-20

Applicant: JEOL Ltd.

Inventor： Yuki Endo ,  Masahide Nishiyama

IPC: G01N24/08 ,  G01R33/31

Abstract: A probe head in a nuclear magnetic resonance measurement apparatus includes a rotating mechanism. In the probe head, an exhaust gas having a high temperature or a low temperature is discharged from a discharge port of the rotating mechanism. An additive gas having room temperature is introduced into the probe head through a plurality of ejection holes. The additive gas is mixed with the exhaust gas, and, as a result, an exhaust gas mixture having a temperature closer to room temperature than is the temperature of the sample is produced. A deflector regulates the direction in which the exhaust gas flows.

公开(公告)号：US11914009B2

公开(公告)日：2024-02-27

申请号：US17885894

申请日：2022-08-11

Applicant: JEOL Ltd. ,  OSAKA UNIVERSITY

Inventor： Hiroki Takahashi ,  Yuki Endo ,  Toshimichi Fujiwara ,  Yoh Matsuki

IPC: G01R33/30

CPC classification number: G01R33/307 ,  G01R33/30 ,  G01R33/305

Abstract: An NMR apparatus includes a depressurizing device for depressurizing an NMR probe, a gas supply device for supplying gas into the NMR probe to thereby pressurize the NMR probe, and a control device. The control device alternately repeats depressurization of the NMR probe, using the depressurizing device, and pressurization of the NMR probe, using the gas supply device. This replaces the gas in the NMR probe.

公开(公告)号：US20230145398A1

公开(公告)日：2023-05-11

申请号：US17984650

申请日：2022-11-10

Applicant: JEOL Ltd.

Inventor： Yuki Endo

IPC: G01R33/30 ,  G01R33/483

CPC classification number: G01R33/307 ,  G01R33/4831

Abstract: An angle adjuster for nuclear magnetic resonance (NMR) includes a linear motion member composed of a shaft and a support member, a rotary member, a conversion mechanism, and a spring. The linear motion member is a member that serves to change, in an NMR probe device, an angle of a sample tube by a linear motion. The rotary member is rotated by a motor. The conversion mechanism converts a rotary motion of the rotary member into a linear motion of the linear motion member. The spring provides, at a portion where the linear motion member and the rotary member are in engagement with each other, a force that urges the linear motion member in one direction toward the rotary member.

公开(公告)号：US20210278487A1

公开(公告)日：2021-09-09

申请号：US17190540

申请日：2021-03-03

Applicant: JEOL Ltd.

Inventor： Yuki Endo ,  Yutaka Horino ,  Naohiro Kosaka ,  Atsuyuki Ichikawa

IPC: G01R33/30

Abstract: A rotation mechanism includes a bearing mechanism and a drive mechanism. Prior to loading of a sample unit, bearing gas is supplied to a bearing mechanism. In the course of inserting the sample unit, bearing gas is sprayed to a surface of the sample tube from around the sample tube to thereby center the sample unit.

公开(公告)号：US10914799B2

公开(公告)日：2021-02-09

申请号：US16364793

申请日：2019-03-26

Applicant: Osaka University ,  JEOL Ltd.

Inventor： Toshimichi Fujiwara ,  Yoh Matsuki ,  Yuki Endo ,  Takahiro Nemoto ,  Shinji Nakamura

IPC: G01R33/30

Abstract: A rotor contains a sample. A turbine cap is fitted into an opening of one end of the rotor, and a bottom cap is fitted into an opening of the other end of the rotor. A recess portion is formed in the turbine cap, and a recess portion is formed in the bottom cap. Insert members having a negative linear expansion coefficient are disposed in the recess portions.

公开(公告)号：US20170176362A1

公开(公告)日：2017-06-22

申请号：US15384356

申请日：2016-12-20

Applicant: JEOL Ltd.

Inventor： Yuki Endo ,  Masahide Nishiyama

IPC: G01N24/08 ,  G01R33/31

CPC classification number: G01N24/082 ,  G01N24/08 ,  G01R33/307 ,  G01R33/31

Abstract: A probe head in a nuclear magnetic resonance measurement apparatus includes a rotating mechanism. In the probe head, an exhaust gas having a high temperature or a low temperature is discharged from a discharge port of the rotating mechanism. An additive gas having room temperature is introduced into the probe head through a plurality of ejection holes. The additive gas is mixed with the exhaust gas, and, as a result, an exhaust gas mixture having a temperature closer to room temperature than is the temperature of the sample is produced. A deflector regulates the direction in which the exhaust gas flows.

公开(公告)号：US11774525B2

公开(公告)日：2023-10-03

申请号：US17693841

申请日：2022-03-14

Applicant: JEOL Ltd.

Inventor： Masahide Nishiyama ,  Yuki Endo ,  Hiroki Takahashi

IPC: G01R33/30

CPC classification number: G01R33/307

Abstract: A direction shifting mechanism for changing a direction of a sample tube is installed on a path of the sample tube between a sample tube supporting unit for supporting, during an NMR measurement, the sample tube used for the NMR measurement and an insertion port through which the sample tube is inserted in and extracted from the sample tube supporting unit. The direction shifting mechanism has a shape which partially includes a form of an arc, and the shape is designed to cause the sample tube to change its direction in such a manner that the sample tube is turned toward the insertion port along the arc while being maintained in contact with at least two points on an inner wall of the direction shifting mechanism.